Records from familysearch.org:

John K Bower in household of Catharine Bagg, "United States Census, 1910"
Name: John K Bower
Titles and Terms:
Event Type: Census
Event Year: 1910
Event Place: Philadelphia Ward 32, Philadelphia, Pennsylvania, United States
District: 763
Gender: Male
Age: 33
Marital Status: Single
Race: White
Race (Original): White
Relationship to Head of Household: Boarder
Relationship to Head of Household (Original): Boarder
Birth Year (Estimated): 1877
Birthplace: Pennsylvania
Immigration Year:
Father's Birthplace: Pennsylvania
Mother's Birthplace: Pennsylvania
Household Gender Age Birthplace
Head Catharine Bagg F 54 Canada English
Son Thomas C Bagg M 20 Pennsylvania
Mother Mary Campbell F 84 England
Boarder Gustave Recke M 27 Russia
Boarder John K Bower M 33 Pennsylvania

John K Bower, "Pennsylvania, Philadelphia Marriage Indexes, 1885-1951"
Name: John K Bower
Spouse's Name: Bagg
Event Year: 1915

John Keely Bower, "United States World War I Draft Registration Cards, 1917-1918"
Name: John Keely Bower
Event Type: Draft Registration
Event Date: 1917-1918
Event Place: Philadelphia City no 49, Pennsylvania, United States
Gender: Male
Birth Date: 08 Nov 1877
Birthplace: , , United States
Nationality: United States
John K Bower, "United States Census, 1920"
Name: John K Bower
Titles and Terms:
Event Type: Census
Event Year: 1920
Event Place: Philadelphia Ward 46, Philadelphia, Pennsylvania, United States
District: 1739
Gender: Male
Age: 44
Marital Status: Married
Race: White
Race (Original): White
Can Read: Yes
Can Write: Yes
Relationship to Head of Household: Head
Relationship to Head of Household (Original): Head
Own or Rent: Own
Birth Year (Estimated): 1876
Birthplace: Pennsylvania
Immigration Year:
Father's Birthplace: Pennsylvania
Mother's Birthplace: Pennsylvania
Household Gender Age Birthplace
Head John K Bower M 44 Pennsylvania
Wife Katharine C Bower F 47 Canada

John K Bower, "Pennsylvania, Philadelphia Marriage Indexes, 1885-1951"
Name: John K Bower
Spouse's Name: Bagg
Event Year: 1929

John Keely Bower, "United States World War II Draft Registration Cards, 1942"
Name: John Keely Bower
Event Type: Draft Registration
Event Date: 1942
Event Place: Philadelphia, Philadelphia, Pennsylvania
Gender: Male
Birth Date: 08 Nov 1877